package com.dzsw.camunda.utils;

import javax.servlet.http.HttpServletRequest;
import java.net.Inet4Address;
import java.net.InetAddress;

public class IpUtil {

    /**
     * 获取本机Ip
     *
     * @return
     * @throws Exception
     */
    public static String getHostIp() throws Exception {
        InetAddress localHost = Inet4Address.getLocalHost();
        return localHost.getHostAddress();
    }

    /**
     * @Description: 获取客户端IP地址
     */
    public static String getIpAddr(HttpServletRequest request) {
        String ip = request.getHeader("X-Real-IP");
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
            if (ip.equals("127.0.0.1")) {
                //根据网卡取本机配置的IP
                InetAddress inet = null;
                try {
                    inet = InetAddress.getLocalHost();
                } catch (Exception e) {
                    e.printStackTrace();
                }
                ip = inet.getHostAddress();
            }
        }
        // 多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
//        if(ip != null && ip.length() > 15){
//            if(ip.indexOf(",")>0){
//                ip = ip.substring(0,ip.indexOf(","));
//            }
//        }
        return ip;
    }
}
